diff options
| -rw-r--r-- | drivers/spi/spi-dw-mid.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c index a507add6231e..46c6d58e1fda 100644 --- a/drivers/spi/spi-dw-mid.c +++ b/drivers/spi/spi-dw-mid.c @@ -150,7 +150,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change) &dws->tx_sgl, 1, DMA_MEM_TO_DEV, - DMA_PREP_INTERRUPT); + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); txdesc->callback = dw_spi_dma_done; txdesc->callback_param = dws; @@ -172,13 +172,17 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change) &dws->rx_sgl, 1, DMA_DEV_TO_MEM, - DMA_PREP_INTERRUPT); + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); rxdesc->callback = dw_spi_dma_done; rxdesc->callback_param = dws; /* rx must be started before tx due to spi instinct */ dmaengine_submit(rxdesc); + dma_async_issue_pending(dws->rxchan); + dmaengine_submit(txdesc); + dma_async_issue_pending(dws->txchan); + return 0; } |